We are a group of players with very varied level of experience in RPG's (me being on the noob side of things). My char is a Drow Rogue, Arcane Trickster level 3.
I know that as a Drow I get Darkness at level 5. I came up with a (possibly) silly mechanic for fun and giggles:
Cast Darkness on the tip of my hat. This should create an area of magical darkness all around me, I'd be effectively blind and eventually slam into an obstacle).
Cast some spell of the type "summon a ring of XXX that moves around you and deals damage / has effect on contact".
Start running around mowing down friends and foe alike, who won't see it coming due to darkness.
Here are a couple of doubts I have regarding it:
Is it doable, or have I underestimated some factor?
Which are the best spells for this AoE damage? (Another party member can cast the spell on me, so it doesn't have to be me casting it on myself: party has Cleric, Druid, Ranger, Warlock, and Barbarian so I am not confined to the Wizard list of spells)
Sword Burst (SCAG) seems a valid option, but is "only" 2d6 at lvl5. I'm looking for something with the similar mechanic, but possibly more persistent effect rather than a flash of dmg. I'd prefer a spell that doesn't do damage but has some AoE effect (pushback, knockdown, status...)
The spell doesn't HAVE to move around. I could use it stationary as a defense mechanism, though having it spin around me while I move would dramatically improve its effectiveness.